Christian Orthodox Holy Fire ceremony lights up the Church of the Holy Sepulchre in Jerusalem

Worshippers hold candles at the Church of Holy Sepulchre during the Christian Orthodox Holy Fire ceremony in Jerusalem's Old City on April 23.

Abir Sultan / EPA

View looking down from the rotunda inside the Church of the Holy Sepulchre in Jerusalem that shows the Tomb of Christ as the miracle of the Holy Fire occurs on April 23, the day before Easter. Eastern Orthodox Christians believe the Holy Fire, which emenates from within the Tomb of Christ and quickly spreads around the church and outside to Jerusalem and even to foreign countries, represents the flame of the Resurrection power, as well as the fire of the Burning Bush of Mount Sinai.

Nir Elias / Reuters

A general view of the Church of Holy Sepulchre during the Christian Orthodox Holy Fire ceremony in Jerusalem's Old City on April 23. Christians around the world celebrate Easter on Sunday.

Oliver Weiken / EPA

The Holy Fire is spread from the rotunda in the Church of the Holy Sepulchre, where many believe Jesus was buried, during the ceremony of the Holy Fire in Jerusalem, Israel, on April 23.